Improvement in regulating the flow of gas to



T. H. SNYDER. REGULATING THE PLOW 0P GAS TO A SOLDERING APPARATUS.

No. 38,083. Patented Mar. 31, 186 3.

x if I if j u M a #Mmim $53 4 UNITED STATES PATENT OFFICE.-

THEODORE n. sNYDER, OF .OAMDEN, NEW JERsEY, ASSIGNOR TO HIM- SELF AND WILLIAM VANDYKE, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN REGULATING THE FLOW 0F GAS TO.SOLDERING APPARATUS.

Specification forming part of Letters Patent No. 38,08 3, dated March 31, 1863. I

To aZZ whom it may concern:

Be it known that I, THEODORE H. SNYDER, j

of Camden, Camden county, New Jersey, have invented a Device for Regulating the Flow of Gas to Soldering Apparatus; and 1 do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the aceompan yin g drawings, and to the letters of reference marked thereon.

My invention consists of a device, fully de scribed hereinafter,'for regulating the flow of gas to the burners used by jewelers and others for soldering purposes.

In order to enable others to make and use my invention,I will now proceed to describe its construction and operation.

On reference to the accompanying drawings,

which form a part of this specification, Figure l is a front view of my apparatus for regulating the flow of gas to burners used by jewelers and others; Fig; 2, a sectional plan of part of Fig. 1.

A represents a table, of suitable form and of a convenient height for the operator.

B, Fig. 2, is a pipe through which ordinary illuminatinggas passes to the flexible tube 0, the pipe B being furnished with an ordinary stop-cock, D, the handle E of which is connected to the coiled spring F, the latter being attached to the table A. .To the handle of the stop-cock is also attached a cord or chain, G, which passes over a pulley, h, hung in any suitable manner to the table, the cord being attached to the upper .end of a vertical rod, H, as is also a spiral spring, I, the upper end of which is connected to the table. The rod H is arranged to slide freely in suitable guides or staples '5 t, secured to the table, and the lower end of the rod is. jointed to a treadle, K, which is in a suitable position'for being acted upon by the foot of the operator. To one-leg of the table is secured a plate, L, in which the bolt M is arranged to slide to and fro freely, the under side of the bolt near the outer end of the same having one, two, or more notches, in either of which a pin, N, proiecting fiom the rod H, takes its place, under circumstances described hereinafter.

elastic tube 0, which rests on the top of the table, may be furnished at the end with any of the well-known burners for producing the The desired flame, to be acted on by a blow-pipe in order to render the flame of heat suflicient for soldering purposes. The tendency of the coiled spring F is to close the stop-cock D and to obstruct the passage of gas from the pipe B to the elastic tube 0, and the tendency of the spring I is to elevate the rod H,

In soldering articles of jewelry and other objects the gasflameis used at intervals only, and it is important that the extent of the flame should be reduced when not in use, a saving of gas being thereby efl'ected.

When the operator, seated at the table A, places his foot on the treadle K and depresses the same, the stop-cock is opened and the full flow of gas is admitted to the burner. When the treadle is released, however, the stop-cock will .be closed by the action of the spiral springs, the flow of gas being consequently obstructed and the fiame o f. the burner extin guished.

In order that the flame may be available at any moment, however, it is necessary that itshould not be quite extinguished but in a condition to at once assume its proper dimensions. In order to accomplish this end, I use the bolt. M, in one of the notches of which the pin Not the rod H takes its place and prevents the rod from rising and the cock from being en tirely closed.

Thelatch may be furnished with one,two,

or more notches for the reception of the'pin,

some of the notches being deeper than others,

so that the flame may be of greater or less ex tent when not in use, accordingto the desire of the operator.

I claim as my invention and desire to secure by Letters Patent- The adjustable notched bolt M, or its equivalent, in combination with the rod H, its projecting pin N, and the treadle K, or its equivalent, the whole' being arranged for regulating the flow of gas through the pipe B to theburner, substantially as andfor the purpose herein set forth. 7 q i o In testimony whereof I have signed my nametothis specification in the presence of two subscribing witnesses.

THEODORE H. SNYDER.

Witnesses:

HENRY HowsON,

JOHN WHITE. 

